In Russian "Constituent Assembly" is transliterated as "Uchreditel'noe Sobranie", hence the abbreviation for the full committee in English is "Komuch").
Battles
On June, 11, Kappel's detachment stormed and captured Syzran, then Stavropol, Buguruslan and Buzuluk. On July 21, after a 150-km march, the Russian-Czechoslovakian detachment under Kappel's command stormed and captured Simbirsk; for this victory Kappel was promoted to colonel. On July 22, Kappel officially became the head of all Komuch forces, which consisted of two infantry regiments and several artillery batteries (about three thousand men altogether).
When the Komuch met in Samara, it was decided that the main strategic goal was to capture Saratov, but Kappel thought that Kazan was a more important target, and thus he attacked and conquered it, which was defended by a large but poorly prepared Red Army.
Kappel thought it was necessary to capitalize on the situation and advance to Moscow through Nizhny Novgorod, but the Komuch and the commanders of the Czechoslovakian troops replied that in this case there would have not been enough troops to defend Samara, Simbirsk, and Kazan. The People's Army was placed in a defensive position, and the Red Army gained time to regroup.[clarification needed]
At the beginning of September, the Red Army began to advance. Kazan was captured by Red Army on September 5 and Simbirsk on September 12. During two weeks Kappel's group defended the left bank of the Volga River and, after joining with other troops, it retreated to Ufa.
Merger
On September 23, 1918, the Komuch and the Provisional Government of Autonomous Siberia merged in Ufa to become the united Provisional All-Russian Government. On September 28, 1918, General Vasily Boldyrev was appointed supreme commander of all land and naval Armed Forces of Russia. The People's Army of Komuch and the Siberian Army were united in one structure. The unification of the Siberian and the People's armies did not lead to success: the Volga Region was completely occupied by the Bolsheviks: Syzran fell on October 3, 1918, and Samara, the former capital of the Komuch Army, on October 8.
In the fall of 1918, during the further unification of the anti-Bolshevik armed forces of the east of Russia, the People's army was abolished, and its forces transformed into the 1st Volga Corps [ru], under command of Vladimir Kappel.
Н. Е. Какурин, И. И. Вацетис "Гражданская война. 1918-1921" (N. Ye. Kakurin, I. I. Vacietis "Civil War. 1918-1921"). St. Petersburg, "Polygon" Publishing House, 2002. ISBN5-89173-150-9